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there are a few kinds of BH that help cars start from extreme cold weather,
$ i* C1 s. Z0 i; Zbasically , BH keep the car warm by heating up the oil pan-which keeps the engine oil from frozen, or by heating up the coolant/radiator, and keep the engine block warm.
# d9 O/ Q( L1 x2 z7 ~Either way, the engine shall not be frozen with use of BH.: Z5 a J$ @# F
Google block heater( I" b1 C$ X0 n$ o# K7 j
* S. k" }) I$ M3 D. k4 {9 YIf you do not have BH on ur car, by using synthetic oil you can also prevent oil frozen from happening.6 G5 \% D T' [. x
A good synthetic oil, 5w20 or 5w 30 , or 3w 20 have a pure point of -30 to -40 degrees. J" |; E8 L+ r- F
) O% d9 L# U2 c _2 `if you have BH or SO, but ur car still could not be started up, and you have not checked/replaced your battary before the winter came, I bet the battary is dead. |
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